JP2019103368A - Electric power monitoring control system, electric power monitoring control device, program for electric power monitoring control device, and electric power monitoring control method - Google Patents

Abstract

To provide an electric power monitoring control system, an electric power monitoring control device, a program for electric power monitoring control device, and an electric power monitoring control method that can reduce a delay in transmission time of video information of an electric power system.SOLUTION: An electric power monitoring control system comprises: an electric power monitoring control device 2m having a transmission control part 6m which performs, based upon traffic observed by a communication relay part 3m, data compression on video information of an electric power system in an object area stored in a storage part 4m to generate compressed video information, and encodes and transmits the video information to a communication line 9 through the communication relay part 3m; and an electric power monitoring control device 2a having a decoding part 5a which decodes the encoded compressed video information transmitted from the transmission control part 6m of the electric power monitoring control device 2m, and a display part 7a which displays the compressed video information decoded by the decoding part 5a.SELECTED DRAWING: Figure 1

Description

  The present embodiment relates to a power monitoring control system for monitoring a power system, a power monitoring control device, a program for a power monitoring control device, and a power monitoring control method.

  A power monitoring control system is installed in the power system to stably supply power. As this type of power monitoring and control system, there is known a power monitoring and control system that displays the status of each power receiving and distribution equipment installed in the power system and the power system.

Japanese Patent Application Laid-Open No. 2016-025799 Japanese Patent Application Publication No. 2002-233082 JP 2000-048969

  In order to stably supply power, the power monitoring control system detects the state of each of the power receiving and distribution facilities and the power system installed in the power system and displays it as system information. Power monitoring and control equipment installed in each area of the power monitoring and control system, grid information showing the status of switches, power distribution equipment such as circuit breakers, circuit breakers, etc., power grid voltage, current etc. It is sequentially stored and displayed as information.

  Even when a failure of the power system or the power receiving and distributing facility is detected, the video information of the power system is stored and displayed in the power monitoring control device installed in each area of the power monitoring control system.

  However, in the case of a large-scale failure, it is necessary to take measures against failure based on the video information of the electric power system or the electric power system in the wide area, and stored in the power monitoring control device installed in each area. The video information of the power system may not be sufficient.

  Moreover, the power monitoring control apparatus installed in each area may be operated unmanned. The power monitoring and control devices installed in each area are installed at remote locations, and a large travel time is required for the operator to directly operate the target power monitoring and control devices installed at a distance. It may be necessary.

  Therefore, the video information of the power system stored in the power monitoring and control device installed in one area is transferred by communication to the power monitoring and control device installed in another area. Transfer of video information of the power system is performed via a communication line such as the Internet.

  However, in communication in a communication line such as the Internet, the amount of data that can be communicated is limited according to the amount of communication occupying the communication line, that is, the state of traffic. For this reason, there is a problem that when the video information of the electric power system has an amount of data exceeding the traffic allowance that is an amount of communicable data, communication may require a large delay time.

  It is desirable that the recovery of the failure of the power system or the power distribution facility be performed promptly. The large delay time due to this communication leads to an unexpected delay in the restoration of the failure of the power system or the power distribution facility, which is undesirable.

  In particular, in the event of an earthquake, there is a tendency for failures in the power system or the power distribution and distribution equipment to occur frequently. Furthermore, in the event of an earthquake, traffic on communication lines such as the Internet tends to be congested, and the amount of data that can be communicated may be limited. Also in such a case, it is desirable that restoration of the failure of the power system or the power receiving and distributing facility be performed promptly, and it is desirable that the transmission of the video information of the power system be performed quickly.

  The power monitoring and control device displays the video information of the power system on the grid monitoring board configured by the large grid display device via the local communication line (LAN) in the power monitoring and control device installed in one area. It is assumed. For this reason, the data size of the video information of the power system is large. When communication of video information of a large power system with a large data size is performed via a wide area network, a delay in transmission time due to the size of the communication amount causes a delay in drawing, which hinders monitoring control of the power system. There is a possibility of coming.

  The present embodiment is a power monitoring control system capable of reducing a delay of transmission time of video information of a power system to solve the above problems, a power monitoring control device, a power monitoring control device program, and a power monitoring control. Intended to provide a method.

The power monitoring control system of this embodiment is characterized by having the following configuration.
(1) A first power monitoring and control apparatus having the following configuration.
(1-1) A first communication relay unit connected to a communication line, observing traffic of the communication line, and transmitting / receiving data to / from the communication line.
(1-2) A storage unit that stores video information of a power system of a target area.
(1-3) Based on the traffic observed by the first communication relay unit, the video information of the power system of the target area stored in the storage unit is compressed to create compressed video information, and the compression is performed. A transmission control unit that encodes video information and transmits the encoded information to the communication line via the first communication relay unit;

(2) A second power monitoring and control apparatus having the following configuration.
(2-1) A second communication relay unit connected to the communication line to transmit and receive data to and from the communication line.
(2-2) A decoding unit that decodes the encoded compressed video information transmitted from the transmission control unit of the first power monitoring and control apparatus, received through the second communication relay unit .
(2-3) A display unit for displaying the compressed video information decoded by the decoding unit.
In addition, a power monitoring control device, a power monitoring control device program, and a power monitoring control method having the above features are also included in the present embodiment.

A diagram showing a power monitoring control system according to a first embodiment A diagram showing a common configuration of the power monitoring control apparatus according to the first embodiment A diagram showing a configuration of a transmission side power monitoring control apparatus according to a first embodiment FIG. 2 is a diagram showing the configuration of a receiving side power monitoring control apparatus according to the first embodiment. The figure which shows the structure of the resolution pattern table memorize | stored in the receiving side electric power monitoring and control apparatus concerning 1st Embodiment. The figure which shows the structure of the input part of the receiving side electric power monitoring and control apparatus concerning 1st Embodiment. The figure which shows the program flow of the input part of the receiving side electric power monitoring and control apparatus concerning 1st Embodiment. The figure which shows the program flow of the transmission control part of the transmission side electric power supervisory control apparatus concerning 1st Embodiment. The figure which shows the program flow of the decoding part of the receiving side electric power supervisory control apparatus concerning 1st Embodiment. The figure which shows the structure of the data input from the input part of the receiving side electric power supervisory control apparatus concerning other embodiment.

[1. First embodiment]
[1-1. Constitution]
A power monitoring control system as an example of this embodiment will be described with reference to FIGS. In the present embodiment, as an example, the power monitoring control device 2m is used as a backup device, and the power monitoring control device 2a displays the compressed video information D2 related to the video information D1 stored in the power monitoring control device 2m. Will be explained.

(1) Overall Configuration of Power Monitoring and Control System 1 The overall configuration of the power monitoring and control system 1 is shown in FIG. The power monitoring control system 1 has four power monitoring control devices 2 (2 m, 2 a, 2 b, 2 c). The power monitoring control devices 2 (2m, 2a, 2b, 2c) are mutually connected via the communication line 9. The power monitoring control apparatus 2m may be referred to as a first power monitoring control apparatus or a transmission side power monitoring control apparatus, and the power monitoring control apparatus 2a may be referred to as a second power monitoring control apparatus or a reception side power monitoring control apparatus.

  The power monitoring control devices 2m, 2a, 2b and 2c may have the same configuration, but as described below, the power monitoring control devices 2m and 2a may partially have a unique configuration. .

  In the present embodiment, in the case where there are a plurality of devices or members of the same configuration, they will be described with the same reference numerals attached, and they will be common when describing individual devices or members of the same configuration. The distinction is made by appending alphabets to numbers.

  The configuration of the power monitoring control system 1 in which the power monitoring control devices 2m and 2a have a unique configuration in part will be described below.

In the power monitoring control system 1, the following data is input, output, transmitted / received or stored.
Image information D1
(Video information D1a of the power system of the power monitoring control device 2a)
(Video information D1b of the power system of the power monitoring control device 2b)
(Video information D1c of the power system of the power monitoring control device 2c)
Compressed video information D2
(Compressed video information D2a of the power monitoring control device 2a)
(Compressed video information D2b of the power monitoring control device 2b)
(Compressed video information D2c of the power monitoring control device 2c)
Traffic monitoring information T1
Request area command C1
Resolution specification command C2

(Power monitoring and control device 2)
The power monitoring control device 2 is a device configured by a microcomputer or the like. The power monitoring and control apparatus 2 is installed at a power supply command station that performs monitoring control of a power system, a system control station, a central control station, a command room such as a substation, a training room, or the like.

  The power monitoring and control apparatus 2 detects the state of each power receiving and distribution facility and the power system installed in the power system of the target area, and displays the status as system information. The power monitoring and control device 2 receives power distribution information such as switches, power distribution equipment such as circuit breakers in the target area, power distribution system voltage such as power system voltage, current, etc. Display.

  The power monitoring control device 2a receives the status of the power distribution facility and the power system from the power distribution facility (not shown) installed in the target area a, and sequentially stores the video information D1a of the power system of the target area a. Display with. Similarly, the power monitoring control apparatus 2b sequentially stores and displays the video information D1b of the power system of the target area b, and the power monitoring control apparatus 2c sequentially stores the video information D1c of the power system of the target area c.

  The power monitoring control device 2m is used as a backup device. The power monitoring control device 2m is configured to transmit the video information D1a stored in the power monitoring control device 2a, the video information D1b stored in the power monitoring control device 2b, and the video information stored in the power monitoring control device 2c via the communication line 9. Receive and store D1c sequentially. Further, in response to a transmission request from the power monitoring control device 2 a, the video information D 1 b and the video information D 1 c are compressed and transmitted to the power monitoring control device 2 a via the communication line 9.

(Configuration common to power monitoring control devices 2m, 2a, 2b, 2c)
The configuration of the common part in the power monitoring control devices 2m, 2a, 2b and 2c is shown in FIG. The power monitoring control device 2 includes a communication relay unit 3, a storage unit 4, a decoding unit 5, a transmission control unit 6, a display unit 7, and an input unit 8. The communication relay unit 3, the storage unit 4, the decoding unit 5, the transmission control unit 6, the display unit 7, and the input unit 8 are connected to the local communication line 11 to mutually transmit and receive.

(Communication relay unit 3)
The communication relay unit 3 is a communication device configured by a so-called router. The communication relay unit 3 is configured by a transmission / reception circuit corresponding to a communication line such as the Internet. One of the communication relay units 3 is connected to a communication line 9 such as the Internet, and the other is connected to a local communication line 11 inside the power monitoring and control apparatus 2. The communication relay unit 3 is disposed inside the power monitoring control device 2 or in a distribution room or the like in which the power monitoring control device 2 is installed.

  The communication relay unit 3 relays communication between the communication line 9 and the local communication line 11 inside the power monitoring and control apparatus 2. The communication relay unit 3 also observes the state of traffic on the communication line 9.

(Storage unit 4)
The storage unit 4 is a communication device configured by a so-called server. The storage unit 4 is configured of a storage medium such as a semiconductor memory or a hard disk. The storage unit 4 is connected to the local communication line 11 inside the power monitoring and control apparatus 2. The storage unit 4 is disposed inside the power monitoring control device 2 or in a distribution room or the like in which the power monitoring control device 2 is installed.

  The storage unit 4 stores video information D1 of the power system based on system information indicating the state of the power system in the target area, such as switches, power receiving and distributing facilities such as circuit breakers, voltage and current of the power system.

(Decoding unit 5)
The decoding unit 5 is a display control device configured by a so-called video decoder. The decoding unit 5 is configured of a microcomputer or the like having a display control circuit. The decoding unit 5 is connected on the input side to the local communication line 11 and on the output side to the display unit 7 of the power monitoring control apparatus 2. The decryption unit 5 is disposed in the vicinity of the display unit 7 such as a distribution room.

  Decoding unit 5 is power based on system information encoded and stored in storage unit 4 and indicating power supply / distribution facilities such as switches and circuit breakers in the power system of the target area, such as voltage and current of the power system. The system video information D1 is decoded and displayed on the display unit 7.

(Transmission control unit 6)
The transmission control unit 6 is a control device configured by a so-called video encoder. The transmission control unit 6 is configured by a microcomputer having a transmission / reception circuit. The transmission control unit 6 is connected to the local communication line 11. The transmission control unit 6 is disposed inside the power monitoring control device 2 or in a distribution room or the like in which the power monitoring control device 2 is installed.

  The transmission control unit 6 is an image of an electric power system based on system information stored in the storage unit 4 and showing power distribution systems such as switches and circuit breakers in the electric power system in the target area, such as voltage and current of the electric power system. The information D1 is encoded into a signal for the communication line 9 configured by the Internet or the like, and transmitted to the communication line 9 through the communication relay unit 3.

(Display 7)
The display unit 7 is a display device configured of a plurality of liquid crystal panels. The display unit 7 is configured of sixteen displays 701 to 716. The display unit 7 is connected to the decoding unit 5. The display unit 7 is installed in the vicinity of the decoding unit 5 disposed in a distribution room or the like.

  The display unit 7 is a power system based on system information that indicates the state of power distribution systems such as switches and circuit breakers in the power area in the target area, such as voltage and current of the power system, decoded by the decoding unit 5. The video information D1 is displayed.

(Input unit 8)
The input unit 8 is an input device in which an operation unit such as a keyboard or a mouse and a display unit such as a CRT are combined. The input unit 8 is connected to the local communication line 11. The input unit 8 is disposed in the vicinity of the display unit 7 installed in a distribution room or the like. The operator operates the input unit 8 to input various commands.

(Local communication line 11)
The local communication line 11 is a communication line provided in a specific area such as a dedicated communication line or a company intranet. Data exchange between the communication relay unit 3, the storage unit 4, the decoding unit 5, the transmission control unit 6, and the input unit 8 is performed by the local communication line 11.

[Configuration unique to power monitoring and control device 2m]
The configuration of the power monitoring control apparatus 2m is shown in FIG. The power monitoring control apparatus 2 m has a configuration unique to the transmission control unit 6. The transmission control unit 6m of the power monitoring and control apparatus 2m includes a transmission / reception unit 61, a reception unit 62, a storage unit 63, and a control unit 64.

  As described above, the transmission control unit 6m is configured by a microcomputer having a transmission / reception circuit. The transmission / reception unit 61, the reception unit 62, the storage unit 63, and the control unit 64 of the transmission control unit 6m are realized by the units that constitute the microcomputer.

(Transceiver unit 61)
The transmission / reception unit 61 is configured by a communication port of a microcomputer that constitutes the transmission control unit 6m. The transmitting and receiving unit 61 is connected to the local communication line 11m. The transmission / reception unit 61 transmits / receives data to / from the communication relay unit 3m via the local communication line 11m. The data transmission and reception operation of the transmission and reception unit 61 is controlled by the control unit 64.

The transmission / reception unit 61 receives the following signal transmitted from the communication relay unit 3m via the local communication line 11m.
Traffic monitoring information T1

The traffic monitoring information T1 includes the following information.
Receive traffic T11
Transmission traffic T12
Usage rate of received traffic T13
Transmission traffic usage rate T14
Total utilization of transmit and receive traffic T15
Error rate T16
Discard rate T17

In addition, the transmitting and receiving unit 61 receives the following signal transmitted from the power monitoring control device 2a via the communication line 9, the communication relay unit 3m, and the local communication line 11m.
Request area command C1
Resolution specification command C2

  The request area command C1 is a command for requesting transmission of the compressed video information D2 and distinguishing the target power monitoring control devices 2a, 2b, and 2c. The resolution designation command C2 is a command for designating the resolution of the compressed video information D2.

The transmission / reception unit 61 transmits the following signals to the power monitoring control device 2a via the local communication line 11m, the communication relay unit 3m, and the communication line 9.
Compressed video information D2
(Compressed video information D2a of the power monitoring control device 2a)
(Compressed video information D2b of the power monitoring control device 2b)
(Compressed video information D2c of the power monitoring control device 2c)

(Receiver 62)
The receiving unit 62 is configured by a communication port or the like of a microcomputer that constitutes the transmission control unit 6m. The receiver 62 is connected to the local communication line 11m. The receiving unit 62 receives data from the storage unit 4 m via the local communication line 11 m and outputs the data to the control unit 64. The data reception operation of the reception unit 62 is controlled by the control unit 64.

The receiving unit 62 receives the following signals from the storage unit 4m via the local communication line 11m.
Image information D1
(Video information D1a of the power system of the power monitoring control device 2a)
(Video information D1b of the power system of the power monitoring control device 2b)
(Video information D1c of the power system of the power monitoring control device 2c)

(Storage unit 63)
The storage unit 63 is configured by a hard disk memory of a microcomputer constituting the transmission control unit 6m, a semiconductor memory, or the like. The storage operation of the storage unit 63 is controlled by the control unit 64. The storage unit 63 temporarily stores data received from the storage unit 4 m by the receiving unit 62.

The storage unit 63 temporarily stores the following data received from the storage unit 4 m by the receiving unit 62.
Image information D1
(Video information D1a of the power system of the power monitoring control device 2a)
(Video information D1b of the power system of the power monitoring control device 2b)
(Video information D1c of the power system of the power monitoring control device 2c)

In addition, the storage unit 63 temporarily stores the following data, which is operationally generated by the control unit 64.
Compressed video information D2
(Compressed video information D2a of the power monitoring control device 2a)
(Compressed video information D2b of the power monitoring control device 2b)
(Compressed video information D2c of the power monitoring control device 2c)

(Control unit 64)
The control unit 64 is constituted by a CPU of a microcomputer constituting the transmission control unit 6m. The control unit 64 incorporates a computer program described later. The control unit 64 is connected to the transmission / reception unit 61, the reception unit 62, and the storage unit 63. The control unit 64 performs the following calculation and control on the transmission / reception unit 61, the reception unit 62, and the storage unit 63.

(A1) Control of Transmission / Reception Unit 61 The control unit 64 controls the transmission / reception unit 61 to receive the following signal transmitted from the communication relay unit 3m via the local communication line 11m.
Traffic monitoring information T1

As described above, the traffic monitoring information T1 includes the following information.
Receive traffic T11
Transmission traffic T12
Usage rate of received traffic T13
Transmission traffic usage rate T14
Total utilization of transmit and receive traffic T15
Error rate T16
Discard rate T17

Further, the control unit 64 controls the transmission / reception unit 61 to receive the following signal transmitted from the power monitoring control device 2a via the communication line 9, the communication relay unit 3m, and the local communication line 11m.
Request area command C1
Resolution specification command C2

Further, the control unit 64 controls the transmission / reception unit 61 to transmit the following signals to the power monitoring control apparatus 2a via the local communication line 11m, the communication relay unit 3m, and the communication line 9.
Compressed video information D2
(Compressed video information D2a of the power monitoring control device 2a)
(Compressed video information D2b of the power monitoring control device 2b)
(Compressed video information D2c of the power monitoring control device 2c)

(A2) Control on Receiver 62 The controller 64 controls the receiver 62 to receive the following signals from the storage unit 4 m via the local communication line 11 m.
Image information D1
(Video information D1a of the power system of the power monitoring control device 2a)
(Video information D1b of the power system of the power monitoring control device 2b)
(Video information D1c of the power system of the power monitoring control device 2c)

(A3) Control on Storage Unit 63 The control unit 64 controls the storage unit 63 to temporarily store the following data received from the storage unit 4 m by the receiving unit 62.
Image information D1
(Video information D1a of the power system of the power monitoring control device 2a)
(Video information D1b of the power system of the power monitoring control device 2b)
(Video information D1c of the power system of the power monitoring control device 2c)

Further, the control unit 64 controls the storage unit 63 to temporarily store the following data generated by the operation.
Compressed video information D2
(Compressed video information D2a of the power monitoring control device 2a)
(Compressed video information D2b of the power monitoring control device 2b)
(Compressed video information D2c of the power monitoring control device 2c)

(Operation generation by control unit 64)
The control unit 64 performs the following data calculation and data generation.
(A) Calculation of Traffic Margin L1 Based on traffic monitoring information T1, traffic margin L1 is calculated.
Traffic margin L1 (%) =
100 (%)-total usage rate of transmission and reception traffic T 15 (%) (Equation 1)

(B) Generation of Compressed Video Information D2 (b1) When Request Area Command C1 Requests Compressed Video Information D2a of Power Monitoring and Control Device 2a:
The video information D1a of the power system of the power monitoring control apparatus 2a is converted based on the traffic margin L1 and the resolution designation command C2 to generate the compressed video information D2a.

(B2) When the request area command C1 requests the compressed video information D2b of the power monitoring control device 2b:
The video information D1b of the power system of the power monitoring and control apparatus 2b is converted based on the traffic margin L1 and the resolution designation command C2, and the compressed video information D2b is generated.

(C) When the request area command C1 requests the compressed video information D2c of the power monitoring control device 2c:
The video information D1c of the power system of the power monitoring control apparatus 2c is converted based on the traffic margin L1 and the resolution designation command C2 to generate compressed video information D2c.

(Other parts)
The communication relay unit 3m, the storage unit 4m, the decoding unit 5m, the display unit 7m, the input unit 8m, and the local communication line 11m of the power monitoring control device 2m have the same configuration as the power monitoring control device 2, and the communication relay unit 3 The same as the storage unit 4, the decoding unit 5, the display unit 7, the input unit 8, and the local communication line 11.

[Specific configuration of the power monitoring control device 2a]
The power monitoring control device 2a receives the status of the power distribution system and the power system from the power distribution system (not shown) installed in the target area a via the local communication line 11a, and The video information D1a is sequentially stored in the storage unit 4a and displayed on the display unit 7a.

  Further, the power monitoring control device 2a receives the compressed video information D2b applied to the video information D1b of the power system of the other target area b from the power monitoring control device 2m, and displays it on the display unit 7a. On the display unit 7a, video information D1a of the power system of the target area a and compressed video information D2b of the target area b are displayed together. The arrangement of the display of the video information D1a and the compressed video information D2b displayed on the display unit 7a is adjusted by the decoding unit 5a.

  The configuration of the power monitoring control apparatus 2a is shown in FIG. The power monitoring control apparatus 2a has a configuration unique to the decoding unit 5a and the input unit 8a. The decoding unit 5a of the power monitoring control apparatus 2a has a storage unit 51. The input unit 8a of the power monitoring control device 2a includes an operation unit 81, a transmission / reception unit 82, and a control unit 83.

(Storage unit 51)
The storage unit 51 is configured by a storage device such as a hard disk memory or a semiconductor memory provided in the decryption unit 5a. The storage unit 51 is provided in the decoding unit 5a. The storage unit 51 stores the resolution pattern table shown in FIG. The resolution pattern table stored in the storage unit 51 is read by the input / output unit 8a.

The resolution pattern table is preset in the storage unit 51. The resolution pattern table is obtained by patterning the following information as shown in FIG.
Resolution of compressed video information D2b Arrangement of display of video information D1a and compressed video information D2b

(Input unit 8a)
The input unit 8a is configured of a personal computer or the like. The input unit 8 a includes an operation unit 81, a transmission / reception unit 82, and a control unit 83. The operation unit 81, the transmission / reception unit 82, and the control unit 83 are realized by respective units constituting a personal computer.

(Operation section 81)
The operation unit 81 is configured by an input device 811 such as a keyboard or a mouse combined with a display device 812 such as a CRT as shown in FIG. The operation unit 81 is operated by the operator and used to select a resolution pattern indicated in the resolution pattern table. A desired resolution pattern is selected by the operator using the input device 811 out of the resolution pattern table displayed on the display device 812.

(Transmitter 82)
The transmission / reception unit 82 is configured by a communication port of a personal computer constituting the input unit 8a. The transmitting and receiving unit 82 is connected to the local communication line 11a. The transmitting and receiving unit 82 transmits and receives data via the local communication line 11a. The transmission and reception operation of data of the transmission and reception unit 82 is controlled by the control unit 83.

The transmission / reception unit 82 receives the following data from the storage unit 51 of the decoding unit 5a via the local communication line 11a.
Resolution pattern table

Further, the transmitting and receiving unit 82 transmits the following signals to the power monitoring control device 2 m via the local communication line 11 a, the communication relay unit 3 a, and the communication line 9.
Request area command C1
Resolution specification command C2

(Control unit 83)
The control unit 83 is constituted by the CPU of the personal computer constituting the input unit 8a. The control unit 83 incorporates a computer program described later. The control unit 83 is connected to the operation unit 81 and the transmission / reception unit 82. The control unit 83 performs the following calculation and control on the operation unit 81 and the transmission and reception unit 82.

(B1) Control on Operation Unit 81 The control unit 83 controls the operation unit 81 to cause the display device 812 to display the resolution pattern table received from the storage unit 51 of the decoding unit 5a.

  In addition, the control unit 83 receives, from the operation unit 81, the resolution pattern and the request area input from the input device 811 by the worker. The operator selects the resolution pattern from the resolution pattern table displayed on the display device 812 using the input device 811.

(B2) Control of Transmission / Reception Unit 82 The control unit 83 controls the transmission / reception unit 82 to receive the resolution pattern table from the storage unit 51 of the decoding unit 5a via the local communication line 11a.

The control unit 83 also controls the transmission / reception unit 82 to transmit the following signals to the power monitoring control apparatus 2 m via the local communication line 11 a, the communication relay unit 3 a, and the communication line 9.
Request area command C1
Resolution specification command C2

(Other parts)
The communication relay unit 3a, the storage unit 4a, the transmission control unit 6a, the display unit 7a, the local communication line 11a, and the decoding unit 5a other than the storage unit 51 of the power monitoring control device 2a have the same configuration as the power monitoring control device 2. The same as the communication relay unit 3, the storage unit 4, the transmission control unit 6, the display unit 7, the local communication line 11, and the decoding unit 5.

[1-2. Action]
Next, the operation of the power monitoring control system 1 of the present embodiment will be described based on FIGS. 1 to 9.

[O. initial state]
The power monitoring control device 2a receives the status of the power distribution facility and the power system from the power distribution facility (not shown) installed in the target area a, and sequentially stores the video information D1a of the power system of the target area a It is stored in the unit 4a and displayed on the display unit 7a. Similarly, the power monitoring control device 2b sequentially stores the video information D1b of the power system of the target area b in the storage unit 4b and displays it on the display unit 7b. Furthermore, the power monitoring control device 2c sequentially stores the video information D1c of the power system of the target area c in the storage unit 4c and displays it on the display unit 7c.

  The power monitoring control device 2m is used as a backup device. The power monitoring and control device 2m includes the video information D1a stored in the storage unit 4a of the power monitoring and control device 2a, the video information D1b stored in the storage unit 4b of the power monitoring and control device 2b, and the power monitoring control via the communication line 9. The video information D1c stored in the storage unit 4c of the device 2c is sequentially received and stored in the storage unit 4m.

The resolution pattern table shown in FIG. 5 is preset and stored in the storage unit 51 of the decoding unit 5a of the power monitoring control apparatus 2a. As described above, the resolution pattern table shown in FIG. 5 is obtained by patterning the following information.
Resolution of Compressed Video Information D2b Arrangement of Display of Video Information D1a and Compressed Video Information D2b The resolution of the compressed video information D2b is obtained by numerically representing the resolution of the image data of the compressed video information D2b. The arrangement of the display of the video information D1a and the display of the compressed video information D2b indicates the display positions of the video information D1a and the compressed video information D2b on the displays 701a to 716a constituting the display unit 7a.

[A. Operation of Power Monitoring and Control System 1]
As an example, a case where the power monitoring control device 2m is used as a backup device and the power monitoring control device 2a displays the compressed video information D2b related to the video information D1b stored in the power monitoring control device 2m will be described. In the power monitoring control system 1, the power monitoring control device 2m receives the instruction from the power monitoring control device 2a, and the power monitoring control device 2m compresses the video information D1b stored in the storage unit 4m and outputs the compressed video information D2b as the power monitoring control device 2a. Send to The transmitted compressed video information D2b is displayed on the display unit 7a of the power monitoring control device 2a.

  As described above, when the compressed video information D2b, which is the video information of the power system of the power monitoring control device 2b, is displayed on the display unit 7a of the power monitoring control device 2a, for example, the worker is near the power monitoring control device 2b. If the power system of the power monitoring control device 2b is checked by an operator near the power monitoring control device 2a, or if the display unit 7b of the power monitoring control device 2b can not display due to a failure. It is needed when it becomes. The details of the operation of each part of the power monitoring control system 1 will be described below.

[B. Operation of Input Unit 8a of Power Monitoring and Control Device 2a]
First, in the power monitoring control apparatus 2a, the input unit 8a performs the following operation. The input unit 8a of the power monitoring and control apparatus 2a operates according to the program shown in FIG. The operation of the power monitoring control apparatus 2a will be described below along the program shown in FIG. The program shown in FIG. 7 is built in the control unit 83 of the input unit 8a. The program shown in FIG. 7 is repeatedly executed by the control unit 83.

(Step R01: Receive resolution pattern table)
The control unit 83 causes the transmission / reception unit 82 to receive the resolution pattern table from the storage unit 51 of the decoding unit 5a via the local communication line 11a. The resolution pattern table is preset and stored in the storage unit 51. As described above, in the resolution pattern table, the following information is patterned.
Resolution of compressed video information D2b Arrangement of display of video information D1a and compressed video information D2b

(Step R02: Display resolution pattern table)
Next, the control unit 83 causes the display device 812 of the operation unit 81 to display the resolution pattern table received in step R01.

(Step R03: Determine whether a resolution pattern and request area have been input)
Next, the control unit 83 determines whether the resolution pattern and the request area have been input from the input device 811 of the operation unit 81. The resolution pattern is selected and input by the operator using the input device 811 based on the resolution pattern table displayed on the display device 812. The request area is a code that distinguishes the power monitoring control devices 2a, 2b, and 2c to which transmission of the compressed video information D2 is requested, and is input by the operator using the input device 811.

  If it is determined that the resolution pattern and the request area have been input (YES in step R03), the control unit 83 receives the input resolution pattern and the request area from the operation unit 81, and proceeds to step R04. If it is not determined that the resolution pattern and the request area have been input (NO in step R03), the process proceeds to step R01 to wait for the input of the resolution pattern and the request area.

(Step R04: Send request area command C1 and resolution specification command C2)
If it is determined in step R03 that the resolution pattern and the request area have been input, the control unit 83 creates a resolution specification command C2 based on the input resolution pattern. The control unit 83 also creates a request area command C1 based on the input request area. The control unit 83 causes the transmission / reception unit 82 to transmit the request area command C1 and the resolution specification command C2 to the power monitoring control apparatus 2m via the local communication line 11a, the communication relay unit 3a, and the communication line 9.

  For example, the area b of the power system applied to the power monitoring control apparatus 2b is input as a request area by the worker. As a result, the request area command C1 requests the compressed video information D2b of the power monitoring control device 2b. Also, for example, based on the resolution pattern table shown in FIG. 5 by the operator, “resolution of compressed video information D2b: 5760 × 2160, resolution of video information D1a 9600 × 2160”, layout of display “compressed video information D2b In the display position of: the six surfaces of the displays 701a to 706a, and the display position of the video information D1a: the surface 3 of 10 surfaces of 707a to 716a are input. As a result, the resolution specification command C2 specifies pattern 3.

[C. Operation of Transmission Control Unit 6m of Power Monitoring Controller 2m]
The power monitoring and control apparatus 2m compresses the video information D1b of the power system of the power monitoring and control apparatus 2b stored in the storage unit 4m based on the traffic observed by the communication relay unit 3m to create compressed video information D2b, The compressed video information D2b is encoded and transmitted to the power monitoring control device 2a via the communication relay unit 3m and the communication line 9.

  If the data amount compressed based on the resolution designation command C2 transmitted from the power monitoring control device 2a is within the traffic margin L1 calculated based on the traffic observed by the communication relay unit 3m, compression is performed. The video information D2b is generated by compressing the video information D1b based on the resolution designation command C2.

  On the other hand, if the amount of data compressed based on the resolution designation command C2 transmitted from the power monitoring control device 2a exceeds the amount of traffic margin L1 calculated based on the traffic observed by the communication relay unit 3m, The compressed video information D2b is generated by compressing the video information D1b such that the amount of data is within the traffic margin L1.

  The details of the operation of the power monitoring control apparatus 2m will be described below. In the power monitoring and control apparatus 2m, the transmission control unit 6m performs the following operation. The transmission control unit 6m of the power monitoring and control apparatus 2m operates according to the program shown in FIG. The program shown in FIG. 8 is incorporated in the control unit 64 of the transmission control unit 6m. The program shown in FIG. 8 is repeatedly executed by the control unit 64.

(Step S01: It is determined whether the request area command C1 and the resolution specification command C2 have been received)
The control unit 64 determines whether the transmission / reception unit 61 has received the request area command C1 and the resolution designation command C2 from the power monitoring control apparatus 2a via the communication line 9, the communication relay unit 3m, and the local communication line 11m.

  If it is determined that the request area command C1 and the resolution designation command C2 have been received (YES in step S01), the process proceeds to step S02. If it is not determined that the request area command C1 and the resolution specification command C2 have been received (NO in step S01), the process returns to step S01 to wait for reception of the request area command C1 and the resolution specification command C2.

(Step S 02: Receive video information D 1 b specified by request area command C 1)
When it is determined that the request area command C1 and the resolution specification command C2 are received in step S01, the control unit 64 is specified by the request area command C1 from the storage unit 4m via the local communication line 11 by the reception unit 62. The video information D1b of the power system of the power monitoring and control apparatus 2b is received.

(Step S03: store the video information D1b)
Next, the control unit 64 temporarily stores the video information D1b of the power system of the power monitoring and control apparatus 2b received in step S02 in the storage unit 63.

(Step S04: Receive traffic monitoring information T1 from communication relay unit 3m)
Next, the control unit 64 causes the transmitting and receiving unit 61 to receive the traffic monitoring information T1 from the communication relay unit 3m via the local communication line 11. The traffic monitoring information T1 is a signal indicating the congestion status of the communication signal of the communication line 9. As described above, the traffic monitoring information T1 includes the following information.
Receive traffic T11
Transmission traffic T12
Usage rate of received traffic T13
Transmission traffic usage rate T14
Total utilization of transmit and receive traffic T15
Error rate T16
Discard rate T17

(Step S05: Calculate traffic margin L1)
Next, the control unit 64 calculates the traffic margin L1 based on the traffic monitoring information T1 received in step S04. The traffic margin L1 is calculated by the following equation (1).
Traffic margin L1 (%) =
100 (%)-total usage rate of transmission and reception traffic T 15 (%) (Equation 1)

(Step S06: It is determined whether the amount of data compressed based on the resolution designation command C2 becomes the amount of data within the traffic margin L1)
Next, when the control unit 64 compresses the video information D1b of the power system of the power monitoring control device 2b based on the resolution designation command C2 received in step S02, the data of the compressed video information D2b which is the data amount after compression It is determined whether the amount is the amount of data within the traffic margin L1 calculated in step S05.

  When it is determined that the amount of data after compression becomes the amount of data within the traffic margin L1 (YES in step S06), the process proceeds to step S07. If it is not determined that the amount of data after compression is the amount of data within the traffic margin L1 (NO in step S06), the process proceeds to step S08.

(Step S07: Compress the video information D1b based on the resolution designation command C2)
If it is determined in step S06 that the amount of data after compression becomes the amount of data within the traffic margin L1, the video information D1b of the power system of the power monitoring and control device 2b is compressed based on the resolution designation command C2, and the power monitoring is performed. The compressed video information D2b of the control device 2b is generated.

(Step S 08: Compress the video information D 1 b based on the traffic margin L 1)
If it is determined in step S06 that the amount of data after compression does not become the amount of data within the traffic margin L1, the amount of data after compression is such that the amount of data within the traffic margin L1 calculated in step S05. The video information D1b of the power system of the power monitoring and control apparatus 2b is compressed to generate compressed video information D2b of the power monitoring and control apparatus 2b.

(Step S09: encode the compressed video information D2b and temporarily store it in the storage unit 63)
Next, the control unit 64 encodes the compressed video information D2b generated in step S07 or step S08 into a data format corresponding to the communication line 9. The encoded compressed video information D2b is temporarily stored in the storage unit 63.

(Step S10: Send compressed video information D2b)
Next, the control unit 64 powers the compressed video information D2b encoded in step S09 and temporarily stored in the storage unit 63 from the transmitting / receiving unit 61 through the local communication line 11m, the communication relay unit 3m, and the communication line 9. It transmits to the monitoring control apparatus 2a.

[D. Operation of Decoding Unit 5a of Power Monitoring and Control Device 2a]
Next, in the power monitoring control apparatus 2a, the decoding unit 5a performs the following operation. The decoding unit 5a of the power monitoring control apparatus 2a operates according to the program shown in FIG. The program shown in FIG. 9 is built in the decoding unit 5a. The program shown in FIG. 9 is repeatedly executed by the decryption unit 5a.

(Step R11: It is determined whether the compressed video information D2b has been received from the power monitoring control device 2m)
The decoding unit 5a of the power monitoring control device 2a determines whether the compressed video information D2b has been received from the power monitoring control device 2m. The compressed video information D2b, which is data obtained by compressing the video information D1b of the power system of the power monitoring control device 2b, is transmitted from the power monitoring control device 2m to the communication line 9, the communication relay unit 3a of the power monitoring control device 2a, and the local communication line 11a. , To the decoding unit 5a.

  If it is determined that the compressed video information D2b has been received (YES in step R11), the process proceeds to step R12. If it is not determined that the compressed video information D2b has been received (NO in step R11), the process proceeds to step R11 again to be in a reception waiting state for the compressed video information D2b.

(Step R12: It is determined whether the compressed video information D2b is compressed based on the resolution designation command C2)
If it is determined in step R11 that the compressed video information D2b has been received, the decoding unit 5a determines whether the compressed video information D2b received in step R11 is compressed based on the resolution designation command C2.

  If it is determined that the compressed video information D2b is compressed based on the resolution designation command C2 (YES in step R12), the process proceeds to step R13. If it is not determined that the compressed video information D2b is compressed based on the resolution designation command C2 (NO in step R12), the process proceeds to step R14.

(Step R13: Decode compressed video information D2b based on the resolution designation command C2)
When it is determined in step S12 that the compressed video information D2b is compressed based on the resolution designation command C2, the decoding unit 5a decodes the compressed video information D2b based on the resolution designation command C2.

(Step R14: Decode compressed video information D2b based on the compressed compression ratio)
If it is determined in step S12 that the compressed video information D2b is not compressed based on the resolution designation command C2, the decoding unit 5a decodes the compressed video information D2b based on the compressed compression ratio. If it is determined in step S12 that the compressed video information D2b is not compressed based on the resolution designation command C2, the compressed video information D2b is compared with the traffic margin in step S08 of the transmission control unit 6m of the power monitoring control device 2m. It is compressed based on the degree L1. The decoding unit 5a decodes the compressed video information D2b based on the compressed compression ratio.

(Step R15: Receive the video information D1a from the storage unit 4a)
Next, the decoding unit 5a receives the video information D1a of the power system of the power monitoring and control apparatus 2a from the storage unit 4a. The video information D1a is video information of the power system of the power monitoring control device 2a which is the own location, and is not compressed.

(Step R16: Display the compressed video information D2b and the video information D1a on the display unit 7a)
Next, the decoding unit 5a causes the display unit 7a to display the video related to the compressed video information D2b decoded in step R13 or step R14 and the video related to the video information D1a received from the storage unit 4a in step R15. Display. The video according to the compressed video information D2b and the video according to the video information D1a are displayed together on the display unit 7a.

  The video according to the compressed video information D2b and the video according to the video information D1a are displayed according to the arrangement of the display of the video information D1a and the compressed video information D2b of the selected resolution pattern table.

  Thereafter, the power monitoring and control device 2m and the power monitoring and control device 2a end the series of programs.

  The above is the operation of the power monitoring control system 1. As described above, the display unit 7a of the power monitoring control device 2a is combined with the video related to the compressed video information D2b of the power monitoring control device 2b and the video related to the video information D1a of the power system of the power monitoring control device 2a. Is displayed.

[1-3. effect]
(1) According to the present embodiment, the power monitoring and control apparatus 2m compresses the video information D1 of the power system of the target area stored in the storage unit 4m based on the traffic observed by the communication relay unit 3m. A transmission control unit 6m that generates the compressed video information D2 and encodes the compressed video information D2 and transmits the encoded video information D2 to the communication line 9 via the communication relay unit 3m; and the power monitoring control device 2a is a power monitoring control device A decoding unit 5a for decoding the encoded compressed video information D2 transmitted from the 2m transmission control unit 6m; a display unit 7a for displaying the compressed video information D2 decoded by the decoding unit 5a; Since the power monitoring and control system 1, the power monitoring and control device 2, the power monitoring and control device program, and the power monitoring and control method can be provided, the delay of the transmission time of the video information of the power system can be reduced. It can be.

  The compressed video information D2 is generated by compressing the video information D1 so that the amount of data within the traffic margin L1 calculated based on the traffic observed by the communication relay unit 3m. For this reason, it can be reduced that the amount of communication occupying the communication line 9 becomes excessive, and the delay of the transmission time of the video information D1 of the power system can be reduced.

(2) The power monitoring control device 2a transmits the input resolution to the input unit 8a to which the resolution of the compressed video information D2 is input, and the input resolution to the communication line 9 via the communication relay unit 3a. The communication relay unit 3m receives the resolution transmitted to the communication line 9, and when the data obtained by compressing the video information D1 based on the resolution is within the traffic margin L1, the transmission control unit 6m uses the resolution. Based on the data, the video information D1 of the power system in the target area is compressed to create compressed video information D2, and the compressed video information D2 is encoded and transmitted to the power monitoring control device 2a via the communication line 9.

  Therefore, the compressed video information D2 to be transmitted has a data amount within the traffic margin L1, and has a resolution desired by the operator. As a result, it can be reduced that the amount of communication occupying the communication line 9 becomes excessive, and the delay of the transmission time of the video information D1 of the power system can be reduced.

(3) A command for specifying a target area among the power systems of a plurality of areas is input to the input unit 8a of the power monitoring and control apparatus 2a, transmitted to the power monitoring and control apparatus 2m, and the power monitoring control apparatus 2m The storage unit 4m stores video information D1 of power systems of a plurality of areas, and the transmission control unit 6m compresses and compresses video information D1 of a power system of a target area among the power systems of the plurality of areas. The video information D2 is created, encoded, and transmitted to the power monitoring control device 2a via the communication line 9. Therefore, the worker does not move the power system of a plurality of points by the display unit 7a of one power monitoring control device 2a. Can be confirmed by the compressed video information D2. Thereby, the movement time of the worker at the time of electric power system inspection etc. can be reduced.

[2. Other embodiments]
While the embodiments have been described including variations, these embodiments are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in other various forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the invention described in the claims and the equivalents thereof as well as included in the scope and the gist of the invention. The following is an example.

(1) In the above embodiment, the resolution pattern table in which the resolution of the compressed video information D2b and the arrangement of the display of the video information D1a and the compressed video information D2b are patterned is the storage unit of the decoding unit 5a of the power monitoring control device 2a. In the input of the resolution to the input unit 8a by the operator, a desired resolution pattern is selected by the operator using the input device 811 from the resolution pattern table displayed on the display device 812. It was a thing.

  However, the method of inputting the resolution into the input unit 8a is not limited to this. The method of inputting the resolution pattern to the input unit 8a may be as follows. For example, the resolution of the video information D1a and the compressed video information D2b, or the arrangement of the display of the video information D1a and the compressed video information D2b may be set by the operator directly in numerical values as shown in FIG. As shown in (b), by pointing out an arbitrary part of the images of the displays 701a to 716a displayed on the display device 812 with the input device 811 such as a mouse, the image is input to the operation unit 81 of the input unit 8a. You may

  In step R04, the resolution of the input video information D1a and compressed video information D2b or the arrangement of the display of video information D1a and compressed video information D2b by the control section 83 of the input section 8a of the power monitoring control device 2a. Based on such information, a resolution designation command C2 is created, and a request area command C1 and a resolution designation command C2 are transmitted to the power monitoring control device 2m.

  By configuring in this manner, the operator can set arbitrary video information by the operator regardless of the resolution of the compressed video information D2b applied to the resolution pattern table and the arrangement pattern of the video information D1a and the compressed video information D2b set in advance. It is possible to set the resolution of D1a and compressed video information D2b or the arrangement of the display of video information D1a and compressed video information D2b.

(2) In the above embodiment, the power monitoring control system 1 has four power monitoring control devices 2 (2 m, 2 a, 2 b, 2 c), but the number of power monitoring control devices 2 is limited to this. I can not. Although the power monitoring control device 2m is used for backup, the power monitoring control of the target area may be constantly performed by the power monitoring control device 2m.

(3) In the above-mentioned embodiment, although each part which constitutes electric power monitoring control device 2 was defined as a portion constituted inside electric power monitoring control device 2, composition of each part is not restricted to this. Each part which comprises the electric power monitoring control apparatus 2 may be comprised by a single-piece | unit apparatus, respectively.

(4) In the above embodiment, the communication relay unit 3 is configured by a router compatible with the Internet, but the communication relay unit 3 is not limited to this. The communication relay unit 3 may correspond to, for example, a radio wave or optical communication.

(5) In the said embodiment, although the display part 7 shall be comprised by the display 701-716 of 16 sheets, the kind of display and the number of sheets are not restricted to this. For example, the display unit 7 may be configured by a plasma display. Further, the display unit 7 may be configured by more or less than sixteen displays.

(6) In the above embodiment, the transmission / reception unit 61, the reception unit 62, the storage unit 63, and the control unit 64 of the transmission control unit 6m are unique to the power monitoring control device 2m. The devices 2a, 2b, 2c may have these configurations.

(7) In the above embodiment, the transmission / reception unit 61, the reception unit 62, the storage unit 63, and the control unit 64 of the transmission control unit 6m may be realized by hardware of a microcomputer or realized by software. It may be For example, the transmission control unit 6 may be a microcomputer expanded in function by a card slot.

(8) In the above embodiment, although the storage unit 51 of the decoding unit 5a, the operation unit 81 of the input unit 8a, the transmission / reception unit 82, and the control unit 83 are unique to the power monitoring control device 2a. The power monitoring control devices 2m, 2b and 2c may have these configurations.

(9) In the above embodiment, although the case where the compressed video information D2b of the power monitoring control device 2b is displayed on the display unit 7a of the power monitoring control device 2a has been described, instead of this, the display of the power monitoring control device 2a The compressed video information D2c of the power monitoring control device 2c may be displayed on the unit 7a. Further, a plurality of pieces of compressed video information D2b and D2c may be displayed on the display unit 7a of the power monitoring control apparatus 2a.

(10) In the above embodiment, the traffic margin L1 is calculated based on the total usage rate T15 of transmission / reception traffic, but the calculation method of the traffic margin L1 is not limited to this. The traffic margin L1 may be calculated, for example, by the following (Expression 2).
Traffic margin L1 (%) =
100 (%)-Total utilization rate of transmission and reception traffic T15 (%)
Error rate T16 (%) Discard rate T17 (%) (Equation 2)

1 Power monitoring and control system 2, 2a, 2b, 2c, 2m Power monitoring and control device 3, 3a, 3m ... Communication relay unit 4, 4a, 4m ... Storage unit 5, 5a, 5m ... Decoding units 6, 6a, 6m ... Transmission control units 7, 7a, 7m ... Display units 8, 8a, 8m ... Input units 9 ... Communication lines 11, 11a, 11m · · · Local communication line 51: Storage unit 61: Transmission and reception unit 62: Reception unit 63: Storage unit 64: Control unit 81: Operation unit 82: Transmission and reception unit 83 Control units 701 to 706, 701a to 706a, 701m to 706m ... display 811 ... input device 812 ... display device

Claims (12)

A first communication relay unit connected to the communication line for observing traffic of the communication line and transmitting and receiving data via the communication line;
A storage unit that stores video information of a power system of a target area;
Based on the traffic observed by the first communication relay unit, the video information stored in the storage unit is data compressed to create compressed video information, and the compressed video information is encoded to perform the first communication A transmission control unit that transmits to the communication line via a relay unit;
A first power monitoring controller having:
A second communication relay unit connected to the communication line and configured to transmit and receive data via the communication line;
A decoding unit for decoding the compressed video information transmitted from the transmission control unit of the first power monitoring and control apparatus, received via the second communication relay unit;
A display unit for displaying the compressed video information decoded by the decoding unit;
A second power monitoring controller having:
Power monitoring and control system with. The second power monitoring and control device
It has an input unit to which the resolution of the compressed video information is input,
The second communication relay unit transmits the resolution input by the input unit via the communication line.
Of the first power monitoring and control device,
The first communication relay unit receives the resolution transmitted to the communication line,
If the data obtained by compressing the video information based on the resolution is within the margin of the traffic, the transmission control unit compresses the video information of the power system of the target area based on the resolution and performs the compressed video information , Encoding the compressed video information and transmitting it to the communication line via the first communication relay unit.
The power monitoring control system according to claim 1. The second power monitoring controller
The input unit receives a command for specifying a target area among power systems of a plurality of areas,
The second communication relay unit transmits the command via the communication line,
Of the first power monitoring and control device,
The storage unit stores video information of power grids of a plurality of areas,
The transmission control unit, based on the command received via the first communication relay unit, the video information of a power system of a target area among power systems of a plurality of areas stored in the storage unit. Data compression is performed to create compressed video information, and the compressed video information is encoded and transmitted to the communication line via the first communication relay unit.
The power monitoring control system according to claim 2. The first communication relay unit, the storage unit, and the transmission control unit of the first power monitoring and control apparatus are connected via a local area network,
The second communication relay unit and the decoding unit of the second power monitoring and control apparatus are connected via a local area network.
The power monitoring control system according to any one of claims 1 to 3. A communication relay unit connected to the communication line for observing traffic of the communication line and for transmitting and receiving data via the communication line;
A storage unit that stores video information of a power system of a target area;
Based on the traffic observed by the communication relay unit, the video information stored in the storage unit is data compressed to create compressed video information, and the compressed video information is encoded to generate the first communication relay unit. A transmission control unit that transmits to the communication line via
A transmitter power monitoring controller having: The communication relay unit receives the resolution transmitted to the communication line from the reception side power monitoring controller.
If the data obtained by compressing the video information based on the resolution is within the margin of the traffic, the transmission control unit compresses the video information based on the resolution to create the compressed video information, Encoding compressed video information and transmitting it to the communication line via the first communication relay unit;
The transmission side power monitoring control apparatus according to claim 5. The storage unit stores video information of power grids of a plurality of areas,
The communication relay unit receives a command specifying the target area among the power systems of the plurality of areas, which is transmitted from the reception side power monitoring and control apparatus to the communication line,
The transmission control unit compresses the video information of the power system of the designated area stored in the storage unit based on the command to create compressed video information, encodes the compressed video information, and Transmit to the communication line via the first communication relay unit;
The transmission side power monitoring control apparatus of Claim 5 or 6. An input unit to which the resolution of the video information of the power system of the target area is input;
The resolution of the video information of the power system of the target area input to the input unit is transmitted to the transmission side power monitoring control apparatus via the communication line, and the compressed or encoded based on the resolution or the traffic of the communication line A communication relay unit that receives compressed video information of a power system from the transmission-side power monitoring controller via the communication line;
A decoding unit that decodes the compressed video information received by the communication relay unit;
A display unit for displaying the compressed video information decoded by the decoding unit;
Receiving side power monitoring control device. The resolution of the video information of the power system in the target area is input from the input unit by at least one of resolution of the compressed video information and arrangement of display of the compressed video information and the video information concerning the reception side power monitoring control device.
The reception side power monitoring control apparatus according to claim 8. The compressed video information decoded by the decoding unit and the video information concerning the reception side power monitoring control device are displayed on the display unit.
The reception side power monitoring control apparatus according to claim 8 or 9. A first step of observing traffic of the communication line by a communication relay unit connected to the communication line;
A second step of data compression of video information of the power system of the target area stored in the storage unit based on the traffic observed in the first step to create compressed video information;
A third step of encoding the compressed video information created in the second step and transmitting it to the communication line via the communication relay unit;
Program for transmitting side power monitoring and control device having: A first procedure of observing traffic of the communication line by a communication relay unit connected to the communication line;
A second procedure of data compression of video information of a power system of a target area stored in a storage unit based on the traffic observed in the first procedure to create compressed video information;
A third procedure for encoding the compressed video information created in the second procedure and transmitting the encoded video information to the communication line via the communication relay unit;
A transmitter power monitoring control method having:

Images